JP3175826U - Electric heating mat - Google Patents

Abstract

【Task】
This device is intended to provide an electric heating mat in which the work process for incorporating a heating element is simple, the density per area can be easily adjusted, and the temperature on the entire surface can be made uniform.
[Solution]
It comprises a plate-like housing in which hollow-structured passages are arranged at predetermined intervals, and a surface finish laminated on the upper portion thereof, and is provided with a communication port as appropriate in the partition wall of the hollow passage and communicated with the hollow passage. An electrothermal mat characterized in that a long heating element having flexibility through a mouth is laid on substantially the entire surface of the housing, and a heat equalizing plate is incorporated on almost the entire surface of the housing.
[Selection] Figure 3

Description

The present invention relates to an electrothermal mat in which a heat generating element having flexibility is incorporated into a structure having a hollow structure.

Conventional electric heating mats are made of a material made of hardened rubber, waste tire chips, etc. Recently, products with a larger hollow cross section than the conventional products (mainly plastic resin products) have appeared in recent years. It was.
Many of the shapes have a square cross-sectional structure, but products having a round hole shape or a honeycomb structure are also commercially available for structural reinforcement. On the other hand, the space of the hollow cross section is generally only used as a space for adjusting the structural height and increasing the rigidity of the structure.

Examples of the electrothermal mat in which a heating element is incorporated in such a hollow structure include the following.
1) Utility Model Registration No. 3029638 (see Patent Document 1)
Insert a heating wire into the hollow part of a resin sheet with a hollow part to provide light-weight windows, roofs, wall materials, flooring, and other building materials that are lightweight and have functions such as snow melting, anti-fogging, and heat insulation. Heat generation sheet.
2) Japanese Patent Laid-Open No. 2003-176923 (see Patent Document 2)
A rectangular top plate portion and an engaging portion having an L-shaped cross section are formed on both edges in the longitudinal direction of the top plate portion, and a bag-like fitting portion is formed on both sides of the top plate portion by the engaging portion. An outer body made of a thin plate is prepared, and using the bag-like fitting portion extending along the rear surface and both edges of the outer body, a planar heating element is formed on the rear surface, and an upper surface of the planar heating element is formed. A method for manufacturing a heating panel, comprising: laminating and arranging at least heat insulating plates; and inserting both edges of the heat insulating plates into the bag-like fitting portions;

Utility Model Registration No. 3029638 JP 2003-176923 A

However, as in the above-mentioned utility model registration No. 3029638 (see Patent Document 1), a high value-added and differentiated product is provided by inserting and heating wires in the hollow portion of the resin sheet having the hollow portion. It is not possible to determine whether the heating element is flexible, but it is necessary to consider the work process for incorporating the heating element, adjusting the density per area, and making the temperature uniform over the entire surface. Was not paid at all.
Moreover, in Unexamined-Japanese-Patent No. 2003-176923 (refer patent document 2), the planar heating element of a predetermined area is laminated | stacked and used for an outer shell body, and the heat insulating board of a hollow structure is used. However, the idea of incorporating a heating element in the hollow structure is not suggested.

This device is intended to solve the respective problems of the above-mentioned conventional example, the work process for incorporating the heating element is simple, the density per area can be easily adjusted, and the temperature on the entire surface is made uniform. It is intended to provide an electric heating mat that can be used.

In order to solve the above problems, an electrothermal mat of the present invention includes a plate-like housing in which passages having a hollow structure inside are arranged at a predetermined interval, and a surface finishing material laminated on the plate-like housing, An appropriate communication port is provided in the partition wall, and a long heating element having flexibility through the hollow passage and the communication port is laid on almost the entire surface of the housing, and a heat equalizing plate is provided on the almost entire surface of the housing. It is characterized by being incorporated.

In the electric heating mat of the present invention, the density of the heating elements can be changed by appropriately adjusting the width and interval (pitch) of the hollow passages arranged side by side at the predetermined intervals. It is also characterized in that the temperature can be adjusted.

In the electrothermal mat of the present invention, the hollow passage is selected not only from a substantially square structure, but also from a suitable shape including a triangular or circular shape, and a hexagonal honeycomb structure having a function of structural reinforcement. It is also characterized by that.

In the electrothermal mat of the present invention, the flexible heating element includes a linear heating element and a sheet heating element, and the material is a linear wire having a nichrome wire or a PTC characteristic having safety. It is also characterized by being selected from a heating element, a sheet-like heating element, or a metal foil having an electric heating function.

In the electric heating mat of the present invention, the heat equalizing plate is made of a metal foil, a metal plate, or a heat transfer sheet made of a heat transfer material (heat transfer rubber, etc.), and has flexibility. It is also characterized in that it is arranged at the upper part of the heating element having it or at the lower part of the surface finishing material.

In the electrothermal mat of the present invention, the surface finishing material is selected from a rubber sheet, a vinyl chloride sheet system, a fiber mat, and tatami mats.

As described above, in the structure in which the heating element is incorporated in the hollow passage, temperature unevenness or uneven temperature occurs. Therefore, a metal foil or a metal plate or a conductive material is formed on the upper part of the heating element or the lower part of the surface finish. By applying a soaking plate made of a heat-resistant material, and taking these measures, we were able to eliminate the dissatisfaction with the temperature unevenness felt by the user.
In addition, a plate-shaped housing having a conventional hollow passage can be used for this hollow passage, which has been used mainly for adjusting the height of the structure and increasing the rigidity and strength of the structure. By incorporating a heat generating element having the property, a product with higher added value can be provided.
According to this device, depending on the choice of the type of surface finishing material, it is possible to construct a product (water-resistant electric tatami mat) that can lead to the elimination of coldness especially in the bathrooms of cold districts and the surroundings of open-air baths. Not only will this be possible, but it will also be possible to construct products that can be provided for snowmelt mats and the like.

According to the first device of the present invention, a long heating element having flexibility through the hollow passage and the communication port is provided in a plate-like housing having a simple hollow passage in the unused space. In addition, it is possible to construct a product capable of providing a more comfortable life by incorporating a heat equalizing plate on almost the entire surface of the housing and greatly eliminating temperature unevenness and temperature non-uniformity.

According to the second device of the present invention, the density of the heating elements can be changed by appropriately adjusting the width and interval (pitch) of the hollow passage, and the output of the electric heating mat can be easily adjusted according to the application. Will be able to build.
Therefore, it is possible to provide an electric heating mat that can adjust the temperature of each electric heating mat.

It is a perspective view which shows the typical example of the plate-shaped housing which arrange | positioned the channel | path with a hollow structure inside at predetermined intervals (pitch). It is an end view which shows one Example of the electrothermal mat of this device. It is the schematic plan view.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an electrothermal mat according to the present invention will be described below in detail with reference to the drawings.
FIG. 1 shows a plate-shaped housing 11 in which passages 12 having a hollow structure are arranged at predetermined intervals (pitch).
The hollow passage 12 in the plate-shaped housing 11 is not only in the case of the substantially square (preferably chamfered) cross-sectional shape shown in FIG. 1, but also in the shape of a triangle or a circle, and a hexagon having a function of structural reinforcement. It is selected from appropriate shapes including a honeycomb structure.

As shown in FIGS. 2 to 3, the partition wall 13 of the hollow passage 12 is appropriately provided with a communication port 14, and the long heat generation having flexibility through the hollow passage 12 and the communication port 14. A body 21 is laid over substantially the entire surface of the housing 11.
The flexible heating element 21 is, for example, a linear heating element such as a nichrome wire, a carbon-based sheet-like heating element obtained by printing a dotite-based ink on a PET film, or a heating element formed into a sheet using an extruder. Body, or a linear heating element, and further, a PTC planar heating element having a self-superheating suppression function (SOC) using a polymer resin and a dotite-based ink for enhancing safety, a PTC linear heating element, Or it can choose from the metal foil etc. which were equipped with the electric heating function.
The hollow passages 12 arranged side by side at the predetermined interval (pitch) in the housing 11 change the density of the arrangement of the heating elements 21 in the housing 11 by appropriately adjusting the width and interval (pitch). Therefore, it is possible to adjust the heat generation temperature in each electric heating mat.

As shown in FIGS. 2 to 3, the plate-like housing 11 has a surface finishing material 31 laminated thereon. The surface finishing material 31 can be selected from a rubber sheet, a vinyl chloride sheet system, a fiber mat, and tatami mats. Of course, it is desirable to select an appropriate material in consideration of contact with the user's skin and also in consideration of cost and the like.

In the electric heating mat according to the present invention, a soaking plate 41 is further incorporated on almost the entire surface of the housing 11.
The heat equalizing plate 41 is formed of a metal foil, a metal plate, or a heat transfer sheet made of a heat transfer material, and is an upper portion of the flexible heating element 21, that is, an upper surface of the plate housing 11. Alternatively, it is disposed below the surface finish 31.
That is, in the structure in which the heating element 21 is incorporated in the hollow passage 12 as described above, temperature unevenness or temperature non-uniformity is likely to occur. Therefore, a metal foil is provided above the heating element 21 or below the surface finish 31. By applying a soaking plate 41 made of heat transfer material made of metal, metal plate, heat transfer material, etc., and taking these measures, dissatisfaction with temperature unevenness felt by the user is eliminated It was.

FIG. 3 shows a state where a flexible heating wire 21 is embedded in the hollow passage 12 in the plate-shaped housing 11, and a soaking plate 41 is incorporated in the lower part of the upper surface finish 31. is there.
As shown in the figure, one end of a flexible heating element 21 made of a linear heating element is connected to an AC power source (external power source) 42, and the other end is sealed inside 43 to provide a waterproof / insulating treatment. It means the state that has been done.

The electrothermal mat of the present invention incorporates a heat generating element 21 having flexibility easily into a plate-like housing 11 having a hollow passage that has not been used so far, and adds a soaking effect by the soaking plate 41. It has become possible to increase the value of use of the space and facilitate high value addition and differentiation.
Furthermore, since the heat source consisting of the heat generating element 21 is not exposed to the outside but can be incorporated into the internal independent hollow passage 12, it is hardly affected by stress, and safety can be ensured from the structure.
Therefore, it can be used as a product (water-resistant electric tatami mat) that can lead to the elimination of the coldness in the bathrooms of the cold districts described above, the surroundings of the outdoor bath, etc., and can also be provided for snow melting mats, etc. Product construction is possible.
Of course, it can be used for various purposes as long as the gist of the invention is not changed.

DESCRIPTION OF SYMBOLS 11 Plate-shaped housing 12 Hollow passage 13 Partition wall 14 Communication port 21 Heat generating body 31 Surface finishing material 41 Soaking plate 42 AC power supply (external power supply)
43 Sealing part

Claims (6)

It comprises a plate-like housing in which hollow-structured passages are arranged at predetermined intervals, and a surface finish laminated on the upper portion thereof, and is provided with a communication port as appropriate in the partition wall of the hollow passage and communicated with the hollow passage. An electrothermal mat characterized in that a long heating element having flexibility through a mouth is laid on substantially the entire surface of the housing, and a heat equalizing plate is incorporated on almost the entire surface of the housing. The hollow passages arranged side by side at a predetermined interval can change the density of the arrangement of the heating elements by appropriately adjusting the width and interval thereof, and thus can adjust the temperature in each electric heating mat. The electrothermal mat according to claim 1. The hollow passage is selected not only from a substantially square structure but also from a suitable shape including a triangular or circular shape, and a hexagonal honeycomb structure having a function of structural reinforcement. The electrothermal mat according to claim 1 or 2. The flexible heating element includes a linear heating element and a sheet heating element, and the material thereof is a linear or sheet heating element having a PTC characteristic having nichrome wire or safety. 4. The electric heating mat according to claim 1, wherein the electric heating mat is selected from metal foils having an electric heating function. The soaking plate is made of a heat transfer sheet made of a metal foil, a metal plate, or a heat transfer material made of a heat transfer material, and is a flexible heating element. The electrothermal mat according to any one of claims 1 to 4, wherein the electrothermal mat is disposed at an upper portion or a lower surface finish material. The electrothermal mat according to any one of claims 1 to 5, wherein the surface finishing material is selected from a rubber sheet, a vinyl chloride sheet system, a fiber mat, and tatami mats.

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